Siti Zailah binti Mohd Yusoff (Jawi: سيتي ظل ﷲ بنت محمد يوسف; born 12 October 1963) is a Malaysian politician who has served as the Deputy Minister of Women, Family and Community Development for the second term in the Barisan Nasional (BN) administration under Prime Minister Ismail Sabri Yaakob and Minister Rina Harun since August 2021. She served her first term in the Perikatan Nasional (PN) administration under former Prime Minister Muhyiddin Yassin and Minister Rina Harun from March 2020 to August 2021 and the Member of Parliament (MP) for Rantau Panjang since March 2008. She is a member and Women Chief of the Malaysian Islamic Party (PAS), a component party of the ruling PN coalition.